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Finding the Fourth Proportional to 12,595.56, 18,867.40 and 7,388.88

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Solution

The fourth proportional to 12,595.56, 18,867.40 and 7,388.88 is: 11,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,595.56 : 18,867.40 = 7,388.88 : x
  2. Step 2: Convert to fraction form
    12,595.56/18,867.40 = 7,388.88/x
  3. Step 3: Cross multiply
    12,595.56x = 18,867.40 × 7,388.88
  4. Step 4: Simplify right side
    12,595.56x = 139,408,954.51
  5. Step 5: Solve for x
    x = 139,408,954.51/12,595.56
  6. Step 6: Final answer
    x = 11,068.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.